1 /* 2 * Copyright (C) 2008, VMware, Inc. 3 * 4 * This program is free software; you can redistribute it and/or modify 5 * it under the terms of the GNU General Public License as published by 6 * the Free Software Foundation; either version 2 of the License, or 7 * (at your option) any later version. 8 * 9 * This program is distributed in the hope that it will be useful, but 10 * WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or 12 * NON INFRINGEMENT. See the GNU General Public License for more 13 * details. 14 * 15 * You should have received a copy of the GNU General Public License 16 * along with this program; if not, write to the Free Software 17 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 */ 20 #ifndef _ASM_X86_HYPERVISOR_H 21 #define _ASM_X86_HYPERVISOR_H 22 23 #ifdef CONFIG_HYPERVISOR_GUEST 24 25 #include <asm/kvm_para.h> 26 #include <asm/xen/hypervisor.h> 27 28 /* 29 * x86 hypervisor information 30 */ 31 struct hypervisor_x86 { 32 /* Hypervisor name */ 33 const char *name; 34 35 /* Detection routine */ 36 uint32_t (*detect)(void); 37 38 /* Adjust CPU feature bits (run once per CPU) */ 39 void (*set_cpu_features)(struct cpuinfo_x86 *); 40 41 /* Platform setup (run once per boot) */ 42 void (*init_platform)(void); 43 44 /* X2APIC detection (run once per boot) */ 45 bool (*x2apic_available)(void); 46 }; 47 48 extern const struct hypervisor_x86 *x86_hyper; 49 50 /* Recognized hypervisors */ 51 extern const struct hypervisor_x86 x86_hyper_vmware; 52 extern const struct hypervisor_x86 x86_hyper_ms_hyperv; 53 extern const struct hypervisor_x86 x86_hyper_xen; 54 extern const struct hypervisor_x86 x86_hyper_kvm; 55 56 extern void init_hypervisor(struct cpuinfo_x86 *c); 57 extern void init_hypervisor_platform(void); 58 extern bool hypervisor_x2apic_available(void); 59 #else 60 static inline void init_hypervisor(struct cpuinfo_x86 *c) { } 61 static inline void init_hypervisor_platform(void) { } 62 static inline bool hypervisor_x2apic_available(void) { return false; } 63 #endif /* CONFIG_HYPERVISOR_GUEST */ 64 #endif /* _ASM_X86_HYPERVISOR_H */ 65